Synthesis of sterically hindered N -benzyladamantyl substituted benzimidazol-2-ylidene palladium complexes and investigation of their catalytic activity in aqueous medium

Tetrahedron ◽  
2017 ◽  
Vol 73 (40) ◽  
pp. 5940-5945 ◽  
Author(s):  
Zineb Imene Dehimat ◽  
Aziz Paşahan ◽  
Dahmane Tebbani ◽  
Sedat Yaşar ◽  
İsmail Özdemir
2014 ◽  
Vol 33 (22) ◽  
pp. 6481-6492 ◽  
Author(s):  
Jhen-Yi Lee ◽  
Dabalina Ghosh ◽  
Jing-Yi Lee ◽  
Shih-Sheng Wu ◽  
Ching-Han Hu ◽  
...  

2016 ◽  
Vol 818 ◽  
pp. 179-184 ◽  
Author(s):  
Liangru Yang ◽  
Xinchi Zhang ◽  
Jinwei Yuan ◽  
Yongmei Xiao ◽  
Pu Mao

ChemSusChem ◽  
2009 ◽  
Vol 2 (7) ◽  
pp. 650-657 ◽  
Author(s):  
Carolina del Pozo ◽  
Nathalie Debono ◽  
Avelino Corma ◽  
Marta Iglesias ◽  
Félix Sánchez

2021 ◽  
Author(s):  
Mickaël Avanthay ◽  
Robin Bedford ◽  
Callum Begg ◽  
Dietrich Böse ◽  
Jonathan Clayden ◽  
...  

A recent report in Nature Catalysis detailed the potentially paradigm-shifting organocatalysis of Suzuki cross-coupling of aryl halides with aryl boronic acids, catalysed by simple amine species. We have conducted a reinvestigation of key claims in this paper across multiple academic and industrial laboratories that shows that the observed catalytic activity cannot be due to the amine, but rather is due to tricyclohexylphosphine palladium complexes that are readily entrained during the purification of the amine<b>.</b>


2016 ◽  
Vol 6 (6) ◽  
pp. 1921-1929 ◽  
Author(s):  
Gabriela A. Fernández ◽  
Alicia B. Chopa ◽  
Gustavo F. Silbestri

Comparative studies were carried out with the addition of different silver salts. Our results indicate that the bulkier complex is the most effective and that the addition of methanol as co-solvent not only shortens reaction times but also stabilizes the less bulky complexes.


Catalysts ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 141 ◽  
Author(s):  
Vladimir Mikhaylov ◽  
Viktor Sorokoumov ◽  
Denis Liakhov ◽  
Alexander Tskhovrebov ◽  
Irina Balova

Two types of immobilized on the amino-functionalized polystyrene-supported acyclic diaminocarbene palladium complexes (ADC-PdII) are investigated under Sonogashira cross-coupling conditions. Depending on substituents in the diaminocarbene fragment immobilized ADC-PdII, systems are found to have different catalytic activity and stability regarding Pd-leaching. PdII-diaminocarbenes possessing protons at both nitrogen atoms smoothly decompose into Pd0-containing species providing a catalytic “cocktail system” with high activity and ability to reuse within nine runs. Polymer-supported palladium (II) complex bearing NBn–Ccarbene–NH-moiety exhibits greater stability while noticeably lower activity under Sonogashira cross-coupling. Four molecular ADC-PdII complexes are also synthesized and investigated with the aim of confirming proposed base-promoted pathway of ADC-PdII conversion through carbodiimide into an active Pd0 forms.


2020 ◽  
Vol 492 ◽  
pp. 110981 ◽  
Author(s):  
Muhammad Zada ◽  
Arumugam Vignesh ◽  
Hongyi Suo ◽  
Yanping Ma ◽  
Hua Liu ◽  
...  

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